28-01-2021 дата публикации
Номер: US20210024108A1
Принадлежит:
In order to locate points or lines of interest (A, B, C, D, A′, B′, C′, D′, ) of a railway track (), by means of a railway locating system (), progressing on the railway track (), a linear camera () pointing at the railway track () repeatedly acquires instantaneous linear optical data along an instantaneous measurement line (), and an orientation device () of the railway locating system () repeatedly acquires orientation data of the railway locating system () with respect to a reference line (A) of the railway track (). By processing at least the instantaneous linear optical data, a potentially distorted bitmap image is constructed of a zone of the surface of the railway track (), then points or lines of interest (A, B, C, D, A′, B′, C′, D′, ) are identified in the potentially distorted bitmap image, before determining rectified coordinates of the points or lines of interest (A, B, C, D, A′, B′, C′, D′, ), as a function of potentially distorted coordinates of the points or lines of interest (A, B, C, D, A′, B′, C′, D′, ) in a reference system of the potentially distorted bitmap image and orientation data. 25212222252122222. Method according to claim 1 , characterised in that to acquire the orientation data claim 1 , a first feeler of the orientation device () detects an orientation of the locating system () with respect to a first rail (A) of the railway track claim 1 , constituting a first orientation rail (A) claim 1 , and claim 1 , preferably claim 1 , a second feeler of the orientation device () detects an orientation of the locating system () with respect to a second rail (B) of the railway track claim 1 , constituting a second orientation rail (B).35452225222545422522254. Method according to any of the preceding claims claim 1 , characterised in that to acquire the orientation data claim 1 , a first orientation matrix camera (A) of the orientation device () claim 1 , arranged facing a first of the rails of the railway track constituting a first orientation ...
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